D
dira
Unregistered / Unconfirmed
GUEST, unregistred user!
有一张表,aa,sj1,sj2,sj3,aa是主键,sj1,sj2,sj3分别代表时间,表中还有其他字段,如何一次查出sj1,sj2,sj3取不同值的时候aa的总数
查询结果
count(aa) as sj1aa count(aa) as sj2aa count(aa) as sj3aa
2 3 4
----------------------------------------------------------
200分送上啊。。。。。
查询结果
count(aa) as sj1aa count(aa) as sj2aa count(aa) as sj3aa
2 3 4
----------------------------------------------------------
200分送上啊。。。。。